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sprinkles08, ASE Certified Technician
Category: Audi
Satisfied Customers: 22694
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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2006 Audi A3 airconditioner blowing hot air, fan is working,

Customer Question

2006 Audi A3 airconditioner blowing hot air, fan is working, Compressor is new.
Submitted: 11 months ago.
Category: Audi
Expert:  sprinkles08 replied 11 months ago.

Hello and welcome to JustAnswer!

There are many things that can cause the a/c to not blow cold. The problem could be the expansion valve, a restriction in the system, the blend door not moving correctly, it could be a cooling fan issue if it just happens at stops or low speeds. There may also be an electrical issue preventing the compressor from engaging.

The most common cause for lack of compressor engagement or poor performance is low charge. If there are no codes then the next step will be to check system charge.